Sara's results probably do have a higher mean, if we take into account how William is way more willing to pay 20 dollars. Honestly, I think you got your chosen answers right! Just my opinion, as someone inexperienced.
If in a fraction, the numerator or the denominator or both are fractions, then it is called a complex fraction.
Example 1:
Here, since the numerator is a fraction, it is a complex fraction.
Example 2:
Here, since the numerator and the denominator are fractions, it is a complex fraction.
The answer is 4,800 . You have to multiply 120 and 40.
127 = 100 +27
32 = 30 +2
so 127 x 32 = (100 + 27) x (30+2) = (100x30) + (100x2) + (27x30) +(27x2)
= 3000+200+810+54 = 4064
second way:
127 = 100 + 27
127 x 32 = (100+27) x 32 = (100x 32) + ( 27x32) = 3200 + 864 = 4064
